DESCRIPTION

The MTM470 is the first mechanical seal system for propeller
shaft electronically controlled in the world.
Based on the mechanics of the MTM400, it joins the already
known mechanical revolutions with the first system managed by
a software that allows you to control on the monitors controller
or directly in the engine room the operating status of the
mechanical seals in real time.
The 7 sensors incorporated in the MTM470 control,
record and analyze respectively: radial and axial vibrations,
temperature of the cooling medium, the pressure of the cooling
fluid, temperature of the sliding faces, speed in revolutions per
minute and wear, or the degree of deterioration of the sliding
faces.
The software record all these values and transmits them
in various languages (CAN BUS, CAN OPEN, TCP/IP) to the
monitors controller in which the operator can view them with
different levels of instructions (green field, where conditions are
in the limits set by Microtem, yellow field in which the measured
values enter the alert threshold and red field, when the detected
values generate an alarm operation indicating that you should
immediately check the operating status in order to avoid
damage).
All of this data, in addition to the transmission and to the
display, are processed by a processor of latest generation
in which an algorithm of our design work, as recent data
transmitted, shows the operation hours that the mechanical
seal can still perform, considering the current conditions. The
operator can monitor the status of the seal by setting the display
of the “lifetime” of the MTM470 according to the latest hour of
operation, to the last 12 hours of operation, to the last day of
operation or according to the last seven days of operation. The
residual operation time is a value in constant update that does
not determine the final limit of operation but with the estimation
of the operating conditions, it signals the approach to the area
of “possible failure”.
The acquisition unit, the heart of this project, is specifically
designed to accomplish this service. It is in fact able to handle
a multitude of sensors (in addition to those of the mechanical
seal), connected for example to the engine (temperatures,
vibrations control etc.) or more in general to the line of
propulsion. It is able to become the brain of the vessel acquiring
commands and evaluating prior whether the conditions allow
to carry out them. This electronic system is able to manage,
in addition to sensors, also the webcam or other accessories
for the completion of the information. It transmits according
to all protocols and languages, via GSM, satellite, bluetooth,
wifi , offering the possibility to remotely manage the operating
information. The MTM470 is designed and built to provide a tool
to avoid running into failure and aid in the management of the
resources of those who owns a fleet of boats.
In fact, thanks to the analysis in the medium and long term
they can determine which are the most frequent abnormal, what
are the best configurations and on how many boats, and after
many hours of operation we had to intervene to repair a fault.
From now, the management of naval unit has never been
easier.